on_log temporary back to session
on_log temporary back to session

--HG--
extra : convert_revision : al%40openerp.com-20110317162700-65xhaqhlxx8tz5bg

splbio/openerp-web,MarkusTeufelberger/openerp-web,gisce/openerp-web,MarkusTeufelberger/openerp-web,gisce/openerp-web,splbio/openerp-web,vnc-biz/openerp-web,vnc-biz/openerp-web,vnc-biz/openerp-web,gisce/openerp-web,splbio/openerp-web,MarkusTeufelberger/openerp-web,vnc-biz/openerp-web